/*
 * Copyright (C) 2010 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.example.android.apis.app;

import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.Window;
import android.widget.Toast;

/**
 * This demonstrates the basics of the Action Bar and how it interoperates with
 * the standard options menu. This demo is for informative purposes only; see
 * ActionBarUsage for an example of using the Action Bar in a more idiomatic
 * manner.
 */
public class ActionBarMechanics extends Activity {
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);

		// The Action Bar is a window feature. The feature must be requested
		// before setting a content view. Normally this is set automatically
		// by your Activity's theme in your manifest. The provided system
		// theme Theme.WithActionBar enables this for you. Use it as you would
		// use Theme.NoTitleBar. You can add an Action Bar to your own themes
		// by adding the element <item
		// name="android:windowActionBar">true</item>
		// to your style definition.
		getWindow().requestFeature(Window.FEATURE_ACTION_BAR);
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// Menu items default to never show in the action bar. On most devices
		// this means
		// they will show in the standard options menu panel when the menu
		// button is pressed.
		// On xlarge-screen devices a "More" button will appear in the far right
		// of the
		// Action Bar that will display remaining items in a cascading menu.
		menu.add("Normal item");

		MenuItem actionItem = menu.add("Action Button");

		// Items that show as actions should favor the "if room" setting, which
		// will
		// prevent too many buttons from crowding the bar. Extra items will show
		// in the
		// overflow area.
		actionItem.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);

		// Items that show as actions are strongly encouraged to use an icon.
		// These icons are shown without a text description, and therefore
		// should
		// be sufficiently descriptive on their own.
		actionItem.setIcon(android.R.drawable.ic_menu_share);

		return true;
	}

	@Override
	public boolean onOptionsItemSelected(MenuItem item) {
		Toast.makeText(this, "Selected Item: " + item.getTitle(),
				Toast.LENGTH_SHORT).show();
		return true;
	}
}
